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Related papers: Gaia search for early-formed andesitic asteroidal …

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We present a catalogue of white dwarf candidates selected from Gaia early data release three (EDR3). We applied several selection criteria in absolute magnitude, colour, and Gaia quality flags to remove objects with unreliable measurements…

We report 541 new open cluster candidates in Gaia EDR3 through revisiting the cluster results from an earlier analysis of the Gaia DR2, which revealed nearly a thousand open cluster candidates in the solar neighborhood (mostly d < 3 kpc)…

Astrophysics of Galaxies · Physics 2022-05-18 Zhihong He , Chunyan Li , Jing Zhong , Guimei Liu , Leya Bai , Songmei Qin , Yueyue Jiang , Xi Zhang , Li Chen

Determining the source regions of meteorites is one of the major goals of current research in planetary science. Whereas asteroid observations are currently unable to pinpoint the source regions of most meteorite classes, observations of…

Primitive asteroids with low albedos and red slopes in the visible and near infrared (VNIR) are found in both the Main Belt and the Jupiter Trojan clouds. In order to determine whether the VNIR spectral similarities of primitive Main Belt…

Earth and Planetary Astrophysics · Physics 2024-05-08 Oriel A. Humes , Audrey C. Martin , Cristina A. Thomas , Joshua P. Emery

Context: Observation of star occultations is a powerful tool to determine shapes and sizes of asteroids. This is key information necessary for studying the evolution of the asteroid belt and to calibrate indirect methods of size…

Astrophysics · Physics 2009-06-23 P. Tanga , M. Delbo

Nearby galaxies provide populations of stellar and non-stellar sources at a common distance and in quantifiable environments. All are observed through the Milky Way foreground, with varying degrees of contamination that depend on observed…

Astrophysics of Galaxies · Physics 2024-09-05 P. Barmby

Eos family was created during a catastrophic impact about 1.3 Gyr ago. Rotation states of individual family members contain information about the history of the whole population. We aim to increase the number of asteroid shape models and…

Accurate determinations of stellar parameters and distances for large complete samples of stars are keys for conducting detailed studies of the formation and evolution of our Galaxy. Here we present stellar atmospheric parameters ($T_{\rm…

M-type asteroids, as defined in the Tholen taxonomy (Tholen, 1984), are medium albedo bodies supposed to have a metallic composition and to be the progenitors both of differentiated iron-nickel meteorites and enstatite chondrites. We…

Earth and Planetary Astrophysics · Physics 2015-05-19 S. Fornasier , B. E. Clark , E. Dotto , A. Migliorini , M. Ockert-Bell , M. A. Barucci

steroid (596) Scheila was reported to exhibit a cometary appearance and an increase in brightness on UT 2010 December 10.4. We used the IRCS spectrograph on the 8-m Subaru telescope to obtain medium-resolution spectra of Scheila in the…

Earth and Planetary Astrophysics · Physics 2015-05-28 Bin Yang , Henry Hsieh

Although petrologic, chemical and isotopic studies of ordinary chondrites and meteorites in general have largely helped establish a chronology of the earliest events of planetesimal formation and their evolution, there are several questions…

Earth and Planetary Astrophysics · Physics 2015-06-19 P. Vernazza , B. Zanda , R. P. Binzel , T. Hiroi , F. E. DeMeo , M. Birlan , R. Hewins , L. Ricci , P. Barge , M. Lockhart

The early third data release (EDR3) of the European Space Agency satellite Gaia provides coordinates, parallaxes, and proper motions for ~1.47 billion sources in our Milky Way, based on 34 months of observations. The combination of Gaia DR2…

Astrophysics of Galaxies · Physics 2021-03-17 Tommaso Marchetti

Open clusters have long been used as tracers of Galactic structure. However, without a selection function to describe the completeness of the cluster census, it is difficult to quantitatively interpret their distribution. We create a method…

The extensive stellar spectroscopic datasets that are available for studies in Galactic Archeaology thanks to, for example, the Gaia-ESO Survey, now benefit from having a significant number of targets that overlap with asteroseismology…

Infrared spectroscopy between 0.8 and 2.5 microns has been obtained for both components of three unbound asteroid pairs, using the NASA-IRTF with the SpeX instrument. Pair primary (2110) Moore-Sitterly is classified as an S-type following…

Earth and Planetary Astrophysics · Physics 2014-03-05 Stephen D. Wolters , Paul R. Weissman , Apostolis Christou , Samuel R. Duddy , Stephen C. Lowry

Open Clusters are born and evolve along the Milky Way plane, on them is imprinted the history of the Galactic disc, including the chemical and dynamical evolution. Chemical and dynamical properties of open clusters can be derived from…

Processes such as the solar wind sputtering and micrometeorite impacts can modify optical properties of surfaces of airless bodies. This explains why spectra of the main belt asteroids, exposed to these `space weathering' processes over…

Earth and Planetary Astrophysics · Physics 2015-05-19 David Nesvorny , William F. Bottke , David Vokrouhlicky , Clark R. Chapman , Scot Rafkin

We examine the spectral properties of asteroid pairs that were disrupted in the last 2 Myrs to examine whether the site of the fission can be revealed. We studied the possibility that the sub-surface material, perhaps on one hemisphere, has…

Earth and Planetary Astrophysics · Physics 2015-06-22 David Polishook , Nicholas Moskovitz , Francesca DeMeo , Richard P. Binzel

We determined phase curves for 301,272 asteroids in the orange filter and 280,953 in the cyan filter from the latest ATLAS Solar System Catalog V2 (SSCAT-2). Among them, 3,345 and 492 asteroids in the orange and cyan filters, respectively,…

Rotation properties (spin-axis direction and rotation period) and coarse shape models of asteroids can be reconstructed from their disk-integrated brightness when measured from various viewing geometries. These physical properties are…

Earth and Planetary Astrophysics · Physics 2019-10-16 Josef Durech , Josef Hanus , Radim Vanco
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